Gyratory structure.



a. wrcomss. GYRATORY STRUCTURE. APPLICATION FILED DEC. 29. I908- -1 183 9v58, Patented May 23,1916.

2 vSHEETS--SHEET l.

ln iisms'es." g 9 girl/2221012 cor e 07% J I a. w. comes. GYRATOBY STRUCTURE. I

APPLICATION FILE D DEC. 29, 1908.

' Patented May 23, 1916.

2 SHEETS-SHEET 2 171716115 1; eary #6077254", yfzfzw THE COLUMBIA PLANOGRAPH CO. WABHXN To all whom it may concern:

, block 7 arranged in the recess of a ball 6*.

STATES PATENTOFFICE GEORGE w. ooMBs, or LEAVENWORTH, Kansas.

' x cyan-pm STRUCTURE.

i Specification of Letters Patent.

Patented. May 23,1915.

Original application filed m 21,1908, Serial No. 444,677. Divided and this application filed December 2e,190's.- seria naeeavsc I a Be it known that I, GEORGE W; Comics, a citizen of the United States, residing at Leavenworth, in the county of Leavenworth and State of Kansas, have invented certain new and useful Improvements in jGyratory Structures, of whichthe following is a specification. v p g My invention relates to improvements in gyratory structures, such as flour-Sifters, etc.; and it pertains more particularly to the novel driving mechanism 'of saidjstruc j ture.

Referring now'to the accompanying drawings which illustrate the invention, Figure 1 shows an elevation of the structure provided with my improvements. Fig. ,2, is a plan view of a pedestal and a yielding-coupling employed in carrying out the invention.

Figs. 4 and 5 are details of the yielding-coupling forming part of the structure driving mechanism.

1 designates the gyratory structure, which in the present instance, is in the form of a sieve-box freely supported from the ceiling of the building by rods 2, so that it may gyrate. Said structure is provided with centrally-disposed bearings 3, in which a vertically-positioned drive-shaft 1 is journaled, said shaft being provided with eccentric weights 5, whereby a gyratory motion is imparted to the structure when the shaft is rotated. 7

6 designates a pin fixed eccentrically to the lower end of the shaft, but having its axis in alinement with the axisof rotation, so that the shaft will rotate around said pin referred to. The lower end of pin 6 is preferably reduced in diameter and rests upon a 8 designates a pedestal fixed to anadjacent portion of the building and provided with a lubricant-chamber 9, a centrally-disposed step-bearing 10, and a concavedannular seat 11, which latter is arranged inside 5 the lntermediacy of a weight 31, secured to the bearing 10 and spaced a slight distance Fig. 3 is a vertical section on line from driver 13.

III-III of Fig. 2.

hub 12 forms a part th'ereof.- Chamber 15,

.is closed at its upper end by a lid consisting ofa stationarysection 16 and amovablesectlon 17', which latter' 'is movable on the former, so that it may gyrate with' the eccentric-pin 6. g a r 1 Driver '13 transmits motion to the'struc- "ture through'th'e intermediacy of a yieldingcoupling located in chamber 15, consisting "of a lower transversemember 18 and an upper'transverse member 19 arranged to move in ahorizontal plane.

Member 18 is provided with a pair of diametrically-opposed arms 20, having open slots 21, to loosely receive a pair ofdiametrically-arranged I antifriction-rollers 22,

journaled on a'pair of pins 23, projecting Member 18 is also providedwith a pair of arms 24, arranged at right angles to arms 20 and provided with open slots 25, to loosely receive a pair of antifriction-rollers 26, imounted on pins 27,-

depending from the ends of member 19, which latter is keyed to pin 6, while member 18 hasa large centralopening 28,- so that it may move freely without contacting'with the latter member loosely engages the driver or its antifriction rollers 22.

In'order to relieve the yielding-coupling of the weight of the shaft and theparts carried thereby, "and also to overcome eX- pin 6., Said means consists'of a lever comprising a socket 29, inwhich ball 6 ,.rests, and a rod 30. The. upper portion of socket 29 fits snugly in seat 11, in which it is free to move in all directions, and it exerts a re stralnlng 1nfluence on the structure through therefrom, so that the hollow hub 12 of a gthe lower end of rod stationary driver 13, may be journaled in if. WhlleI have described'the preferred conbearing 10, asfshown in Fig. 3, Driver 13's4st1119ti9i1 of my invention, I of course do not are fixed to the shaft, and rollers carr-ied by said last-menti0ned member loosely engagingthe first-mentioned member,-said members and rollers forminga yielding-coupling 1 whereby the shaft is driven by: the driver.

:2. In combination, a gyratory structurata suitably-i supported shaft therefor, a -driver for the shaft, a member fixedito the 'shaft,

and; another member loosely surrounding said shaft and provided with rat plurality of floppies bfjthis patent may, be obtaincdfor five cent: shiny-Jake's g Y tw uhington. D. 0."

arms' loosely engaging the driver and the first-mentioned member, sald members forming iayielding-coupli-ng whereby the shaft is driven by the driver.

33in combination, a gyratory structure,

a shaft thereto, a stationary driver, and a yielding-coupling between a said shaft and driver consisting of a transverse member -fiXed'L-tothe shaft, and a second transverse member loosely-surrounding the shaft and provided With twopairs of arms, one pair of {said arms slidably-en-gaging the firstme-ntioned member andthe other pairof arms .slidably-engaging the driver.

In test-imonyiwhereof I affix my-si-gnature,

in, the; presence of: two witnesses; I

:GEORGE WV. COMES.

Witnesses: I,

EUR. :T-HREDKELD, F; GQ FISCHER.

51112 the "c'ommmmnerm Patents. 

